oracle.jdeveloper.rescat2.model.spi

Interface RCContextRecognizer

public interface RCContextRecognizer

The RCContextRecognizer interface is used to provide a mechanism for creating custom DirContextNode implementations. Resource Provider implementors can register one or more RCContextRecognizer instances. Whenever the Resource Navigator needs to create a folder to correspond to a specific CatalogContext, the registered RCContextRecognizers are consulted to locate one that is capable of creating the DirContextNode.

Implementors must be careful to create DirContextNodes for only their own CatalogContexts. The order of RCContextRecognizer consultation is not specified, and overly aggressive RCContextRecognizers can incorrectly override other implementations.

Since:

11.1.1.0.0

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canCreate(java.net.URL url, oracle.adf.rc.core.CatalogContext catContext) Whether this RCContextRecognizer can create a Node for the specified CatalogContext.
DirContextNode	createNode(java.net.URL url, oracle.adf.rc.core.CatalogContext catContext, DirContextNode parent) Creates an DirContextNode to represent the specified CatalogContext.

Method Detail

canCreate

boolean canCreate(java.net.URL url,
                oracle.adf.rc.core.CatalogContext catContext)

Whether this RCContextRecognizer can create a Node for the specified CatalogContext. Implementations of this method should attempt to be as quick as possible while still retaining accuracy. Any RCContextRecognizer that claims to be able to create an Element will be expected to actually do so if createElement is called with the same values.

Parameters:

url - the URL of the CatalogContext

catContext - the CatalogContext instance

Returns:

whether this RCRecognizer will be able to create an Element for the Resource with the specified URL

createNode

DirContextNode createNode(java.net.URL url,
                        oracle.adf.rc.core.CatalogContext catContext,
                        DirContextNode parent)

Creates an DirContextNode to represent the specified CatalogContext.

Parameters:

url - the URL of the CatalogContext

catContext - the CatalogContext instance

parent - this parent DirContextNode of the one to be created

Returns:

a DirContextNode instance suitable for displaying the CatalogContext in the Resource Palette